Thermoelectric heater



A. TORRIANI Oct. 2, 1928. THERMOELECTRIG HEATER Original Filed Nov. 2'7, 1925 5 1 WD U u. u 0

Ill

Reissued Oct. 2, 1928.

ther nqelectric heater. w

asleprim-pie dr 5 the highest eiiicienc that is practically attain of apparatus.

It is Well known that met betwe en two solid mass and the surface of the mass and also upon the between the two surfaces.

If the said distance is considerable, the heat transmission is affected by radiation and convection through generally occupying two surfaces, but th takes place known, is mission.

In all apparatus heret object specified above,

sequently also of the thermo-electri The thermo electric the liich, owin'g f to *tli e' t's construction, secures y thus far reached and able with this kind the transmission of cat receiving medium interposed the fluid medium space between the transmission never by conductivity which, as is well the best The apparatus accordi characterized by the f sistances are embedded in cold,

extending all over the i mass, this envelope bein to be heated, transmission mass when in a hot method of heat transofore known for the this inconvenience is 0 generator.

ng to the invention act that electric reany preferred mannner surface of said plunged into the whereas the heat PQVIAa ITALY.

Figs. 1 and 2 longitudinal section and t e line caw-, showi heater according tion with 3 and 4 plan view secured to the cap The body is an exact cohi lete a m nis f he annexed "drawing,'

are respectively a central a cross section on g a thermo-electric to the invention in conneca special heating .are respectively an elevafrom-above of the and 2.

through terminals -1- of the body -l-.

fit in the envelope -6 into which it is inserted, the envelope in any convenient man ier to the Vessel -7 containing the fluid heated. Under th 'rent the resistances 2- warm up the mass -1- of the cur become hot and hich accordingly e action expands and increases in cross section and forces out any air that may be interposed between the two adjacent surfaces.

Although I bodiment of my to be understood 1. A thermoelectric fluid resistances are used, lod of its own formed in masses, in which a have described a preferred eminvention in detail,

candle for heating plurality of spiral ged each in a recess a heat transmission mass, this heat transmission mass being an accurate fit in an outer the walls of the vessel be heated is contained,

. are energized.

come in forcible contact 2. In a the moelectri envelope secured to in which the. fluid to so that when said resaid mass of material is caused by the thermal expansion to with said envelope. 0 heater ems-claimed Y n." Ital?- in eiaii'n 1, in 'Wli'lCi'l a plurality of spiral resistances are used and lodged each in a recess (1i its own 'iori'ned in the heat transn'iission times, this heat transmission mass being an accurate it in an outer envelope secured to the walls of the vessel. in which the fluid to be l'nrated contained.

3. In a theri'noeleeirie apparatus, a heat transmission mass a resistai'ice element associated therewith and an envelope surro'liinding said mass, said mass havin a greater intensity ef th'ein'iai expansion tli a'n said envelope so that when heated by said element, said mass :is caused to expand and come in forcible Contact with said envelope.

4. In a therl'iie-eleetfie' apjiar'atu's, sheath, a heat transmission mass adapted to fit closely within said. sheath; said mass an outerhaving a greater rapidity of therlno expansion than said sheath, a resistance element within said mass causing said mass to expand to insure a emnpiete thermal conductive relution between said mass and said sl'i'eath.

5. In a therl'i'io-eleetrie apparatus, a cylindrical sheath, a cylindrical heat transn'iission mass adapted to fit ehisel'y within said sheath, said mass having a greater coefficient of thermal expansion than said sheath, a resistance element within said mass for causing said mass to expand and revent the formation of air pockets between said and said sheath.-

In test-inieny whereof, I have signedniy name to this specification this 1st day of ANGELS TORRIANI.

Feb 1928. 

